SIF Sifalloy No.79 Copper Nickel TIG Filler Rods - 90/10 CuNi - 1.6 to 3.2mm Dia. - 5kg

Sifalloy No 79 Copper Nickel TIG Rods are CuNi alloyed rods designed for joining and surfacing similar alloys with up to 30% nickel content. These rods are copper-nickel-ferrous with 30% nickel, making them particularly suitable for highly stressed corrosion-resistant weld surfacing on cast iron, unalloyed, and low-alloyed steel.

Their resistance to seawater makes them ideal for offshore applications, shipbuilding, and other industries requiring corrosion resistance.

Features and Benefits

• High Nickel Content: Contains 30% nickel, offering enhanced corrosion resistance.
• Versatility: Suitable for joining similar copper-nickel alloys and for weld surfacing on various materials.
• Seawater Resistance: Provides excellent resistance to seawater, making it ideal for marine applications.
• Optimal Mechanical Properties: Offers an ultimate tensile strength of 420 N/mm² and a hardness of 115 BHN.
• High Melting Point: With a melting point of 1180°C, it ensures durability and longevity in various applications.

Common Applications

• Offshore applications due to its resistance to seawater.
• Shipbuilding, ensuring the longevity and durability of marine vessels.
• Plant engineering, especially in areas requiring corrosion-resistant weld surfacing.
• Chemical and food industry where corrosion resistance is crucial.
• Oil refineries, ensuring the safety and longevity of equipment.

Welding Positions

Due to the resistance to sea water the alloy is suitable for offshore applications, ship building, chemical and food industry and oil refineries.

Material to be Welded

Particularly suitable for highly stressed corrosion-resistant weld surfacing on grey cast iron and on unalloyed and low-alloyed steel.